SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for durin.dk
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- *.durin.dk
- Valid from
- Aug 24, 2026
- Valid until
- Nov 22, 2026 (80 days remaining)
- Public key
- EC 256-bit
- Serial
- 06A84544DC15AF347A7820F17FE893D799BB
- SHA-256 fingerprint
- B8:E7:5E:F2:96:6D:AA:EA:C5:CA:D0:61:1D:A1:B1:5A:B4:E9:36:9F:AB:80:76:AA:09:AC:30:13:64:C0:6A:BB
- Chain
- YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Jul 27, 2026.
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This is today's certificate. Turn on monitoring and we'll watch durin.dk continuously, notifying you the moment anything moves across all three signals:
Uptime
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DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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